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GMC-I Messtechnik GmbH
10.1.4 RPE – Probe-Probe Measurement
Not included with:
PC I parameter, Rpe measurement No
PC II (without PE)
PC III
The protective conductor measurement is
conducted while the device under test is
switched off.
The mains connection cable must be moved
around during the protective conductor
measurement, especially at mechanically
stressed points (protection against kinking).
During measurement, the display must be
checked for brief interruptions.
The maximum value is measured and stored
after initially settling in.
Protective conductor resistance is measured
with 200 mA direct current in accordance
with the standard.
All PE parts which are not connected to
each other or are flexibly connected must be
contacted with the probe, one after the
other. During measurement, the maximum
value appears at the lower part of the display
and is used for evaluation.
Connection
➭
Connect the first probe to the black GND
socket.
➭
Connect the second probe to the red
probe socket.
➭
Switch the device under test on.
Procedure
➭
Press the
R
SL
key.
➭
Select the “
Probe-Probe
” menu with the
help of the
scroll keys.
➭
Start the measurement by pressing the
OK
key.
➭
Contact the protective conductor termi-
nal in the DUT’s mains plug with the first
probe.
➭
Contact all parts of the DUT which are
connected to PE with the second probe.
➭
If the respective measured value is
smaller than the specified limit value, this
is indicated acoustically,
OK
appears at
the display and the
LED lights up
green.
➭
You can repeat the measurement by
pressing the
scroll key (reset), after
which the LED
goes out.